So I have had a good bit of time with the Pro and I love it. I don't think that the reviews do it justice as it affects a lot of games. One of them for example is BF2042, it now barely drops below its top resolution threshold which means when you are playing it (I play it a lot) the image looks loads cleaner and much more like the PC equivalent, even my mate mentioned that the witcher 3 has the same, again DRS in play and less scaling.
Dragon age is a huge step up in performance mode, so have been playing a lot of that and I will get a good play with everything this weekend so will report any further findings.
Also, fan noise. Success. There was a hum which was annoying me despite being low volume, I woke this morning and tried rubber o-rings, but no success, in fact more noise. But then I tried it without the covers and noticed it pretty much vanished, so I tried bending the cage top (metal part) which is just under the cover as I figured it must be some kind of amplification or resonance and hey presto its now virtually gone, certainly not an issue in the slightest anymore